Yantra Language Server

The Yantra Language Server is a Visual Studio Code extension that brings intelligent editing support to the grammar language of Yantra — a powerful LALR(1) parser generator and compiler compiler written in C++.

This extension is a companion product to the core Yantra toolchain, offering real-time feedback and authoring assistance for .yantra grammar files.

✨ Features

• Syntax Highlighting: Powered by a TextMate grammar and semantic tokens.
• Diagnostics: Inline error reporting based on Yantra’s parser feedback.
• Formatting: Document-wide formatting for consistent layout and readability.
• Structured Editing: Go To Definition, Find All References, Rename Symbol, Outline View
• Completions: Intelligent suggestions for grammar constructs and keywords.

📦 Installation

1. Download the .vsix file from the latest release.

2. Run the following:

     code --install-extension yantra-language-server-VERSION.vsix
   

3. Open Visual Studio Code.

4. Open any .yantra or .y file to activate the extension.

🧠 About Yantra

Yantra is a modern LALR(1) parser generator with built-in support for:

• Unicode-aware lexing
• AST construction and traversal
• Multi-mode lexers and lexer-driven parsing
• Optional amalgamated output for single-file deployment

Learn more at the Yantra GitHub repository.

🏷️ Release Management

This repository will generally shadow the major and minor releases of Yantra itself. Patch versions may be different.

📁 File Support

This extension activates for files with the following extensions:

• .yantra
• .y

⚙️ Settings

You can configure the extension via VS Code settings:

"yantra.errorThreshold": 25

This controls how many diagnostics are shown before suppression.